Joie Stainless Steel Wavy Knife - (Random Colors) 7-Inch A Creative Approach to Fast and Fancy Cuts. Stainless Steel Blade approx 2.75in L Overall Length: 7in. Dishwasher Safe Contents: 1 SS Wavy Knife (Random Color). You may receive either Orange, Green or Blue. Due to manufacturer packaging we are unable to guarantee the color you will receive.